Pulling-over machine for boots and shoes



. M. M.= SORENSE N-.

PULLIING-OVER'MACHINE FOR BOOTS AND SHOES.

APPLICATION- FILED JULY'IZ. 1919- 1 =3 g 5 4 I, v Patented June 21, 1921.

2 SHEETS-SHEET I- 1 Inventor M. M. SORENSEN. {KILLING-OVER MACHINE- FOR BOOTS AND suoes.

APPHCATIONQ FILED JULY 12', 1919 Patented June 21, 1921 2 susi'Ts-suiim.

Invent r 561222 621.? f

- gZQ'M jittorney UNITED STATES PATENT .oFFic IVJIARIUS METHILTUS SORENSEN, OF'VALLEROD, NEAR RUNGSTED, DENMARK..

PULLING-OVER MACHINE FOR BOOTS AND SHOES.

Application filed July 12,

ments in pulling-over machines for boots and shoes, and especially for footgear that is to be lasted according to themethod of lasting described in my previous U. S. Patent No. 1224229 wherein a piece of wire is arranged to form a loop and is connected for instance, to the'lower edges of the upper and the end portions of the wire crossed and then passed and secured at the top of the last.

The object of the invention is to provide a machine of theabovocharacter wherein the construction is improved, the number of parts comparatively few, the cost ofproduction low and the efficiency high. 7

The invention clearly illustrated in the accompanying drawings in which Figure 1 is a plan view of the invention.

Fig. 2 is a transverse vertical sectional view thereof, and V Fig. 3 is a longitudinal vertical sectional view of the invention, the same being taken at right angles to the view shown in Fig. 2.

The machine has three gripping members, o1- pulling-over grippers, namely, stationary grippers 4, intended to grasp the toe-part of the upper, said grippers having a movable jaw 40, and the two pairs of grippers 5 and 6, which are, as a rule, movable in a vertical direction, and which are intended to grasp the corresponding side of the upper, having movable jaws 50 and 60, respectively.

The opening and shutting of the jaws 40, 50 and 60, and the pulling movement of the grippers 5 and 6, are, caused by a member in common for both actions, preferably a pedal 7. This is, by means of a rod 8, connected with a slide 9, which is guided in the stationary gripper shank 4, and which with a roller 10, presses against the arm 41 of the movable jaw 40. Furthermore, the pedal 7 is, by means of a rod 11 and a cross-piece 14, connected with slides 12 and 13, which are guided in the corresponding gripper-shanks 5 and 6, and with corresponding rollers 15 I sition.

Specification of Letters Patent. P t t d J n 21, 192

1919. Serial No. 310,444.'

and 16, press against the respective arms 51 and 61 of the movable jaws 50 and 60. These arms have such a shape that the jaws are turned-shut when-the slides 12 and 13 are moved downward a certain distance from the position shown in Figs. 2 and 3, after which the rollers enter into hook-shaped projections 52 and 62 at the base of the arms,

so that the further downward movement of the slides is thereby transmitted to the closed grippers. The arm 41 has a'similar shape, but without the hook-like projection. in- 'steadof tl1is, it has astraight prolongation 42 which, when the jaw 40 has been closed, assumes aposition parallelto the moving direction of the slidepiece 9. Thus the roller 10, after the closing of the jaw, willv be able to move downward still farther, thereby holdingthe' jaw. in the closed po The arms'41, 51 and 61 act as counter-weights, which open the jaws when the actuation of the rollers 10, 15, and Y16 ceases. y f j The rippers 4, 5,. and 6 are placed on a table 1 which is the top-plate in a boxshaped frame 18, from whose front side the pedal 7 projects. The grippers 4' are disposed in a tubular standard 19 on a slide 20 in such a manner that it can'be adjusted both in height and also at a greater or lesser distance from the grippers 5 and 6. In accomplishing the vertical adjustment of the grippers 4 in the tubular. standard 19, a bolt 9 is screwed in the slide 9 and is arranged in a vertical slot 19 in the sleeve. A nut 20' is mounted on the projecting outer end of the bolt 9 and is designed for frictional engagement with the standard so as to maintam the slide in the desired position of vertical adjustment. Similarly for the horizontal adjustment, the slidev 20 to which the standard 19 is fixed is provided with a longitudinal slot 21 through which is arranged a bolt 22 carried by the table 17. A nut .23 is engaged with this bolt for clamping the slide in the desired position of adjustment. To permit of the horizontal movement of the slide alining oblong slots 28 of a length equal to that of the slot 21 in the slide are formed in the slide and the table. For the grippers 5 and 6 there "are provided guides 21 and 22, below the table 17, which 7 24, which y means of a suitable member, such as a right and left threaded screw 25,

ides are borne by slides 23 and i ited by' means of a stop 31'.

may be adjusted at various distances from each other. I V

Betweenth grippers 5 and 6,'there is'a support 26 with a rest 27 for the last dur ing the pulling-over process. The support is pivoted in a fork '28 and may be adjusted at greater and lesser distances from the grippers 4: or the standard 19, by means of an adjustable distance gage 29. The rest '27 is provided with a downwardly projecting extension inthe form of a threaded bolt 27 which is .keyedas at 80 in a cylindricalrecess 28 in the support 26 and on 'the bolt is engaged the nut '30 which in turn rests .on the support 26. By turning the said nut on the bolt 80 the rest'27 may be lifted or lowered as desired.

Thusthe situation of tongs and support may be adjusted according to the different sizes and shapes of boots and shoes- .The movement of the pedal 7 may be lim- To make the pull from the treadle 7 to the tongs 5 and 6 resilient, springs 32, S3 and'34 may be inserted, as shown in Fig. 3. r r

In using the machine, thetoe and side parts of the upper placedon the last are placed in the open jaws 4, 5 and 6, which then, while the last is supported on the rest 27, are closed by the actuation of the pedal and, by continued pressure on same, the pulling-over is effected. I

The shown and described details may without altering the nature of the invention be modified in many different ways.

I claim r 1. A pulling-over machine consisting of a support for the last, members for gripping the side parts of the upper, members for gripping the toe-part of the upper, arms on the first-named gripping members having hook-shaped engaging elements, means for actuating these arms, first closing the gripping members and then moving them in the direction of the pulhng-overby actuating said engaging elements, an arm on thegripping members'for sald toe-part hav inga straight prolongation, means for actuating this arm to close the gripp ng members and for holding them closed by following said straight prolongation, and a common moving member for said means' 25A pulling-over-machine consisting of a support for the last, movable members for gripping the side-parts of the upper, members for gripping the toe-part of the upper, said gripping members being adiustable toward said support and an adv MARIUS METHILTUS soRENsEN.

Q lVitnesse's:

E. W. ELLSKAS,-

N. INSCH-JENSEN. 

